Which of the following is an example of a microorganism?

Statement $S$: Presence of a rigid cell wall and nucleoprotein as genetic material. Statement $R$: Examples include Euglena,Dinoflagellates,Amoeba,and Paramecium.

Which one single organism or the pair of organisms is correctly assigned to its taxonomic group?

What is the evolutionary model of classification?

How is the five kingdom classification advantageous over the two kingdom classification?

Who among the following did not propose a system of classification?